SUBJECT
Conservation of natural resources
Environmental aspects
Ecology
4
Economic development
4
Environmental protection
3
Pollution
3
Sustainable development
3
Economic aspects
2
Environmental policy
2
Human ecology
2
Climatic changes
1
Consumption (Economics)
1
Economic developmentxEnvironmental aspects
1
Effect of human beings on
1
Environmental management
1
Ethnobotany
1
Ethnozoology
1
Management
1
Nature
1
Nature conservation
1
Population biology
1
Urban ecology
1
Water resources
1